es | en | pt | fr
    • Presentation
    • Countries
    • Institutions
    • Get involved
        JavaScript is disabled for your browser. Some features of this site may not work without it.
        View Item 
        •   Home
        • Argentina
        • Gobierno
        • Comisión de Investigaciones Científicas (Argentina)
        • View Item
        •   Home
        • Argentina
        • Gobierno
        • Comisión de Investigaciones Científicas (Argentina)
        • View Item

        Biostratigraphy and correlation of the Monte Hermoso Formation (early Pliocene, Argentina): the evidence from caviomorph rodents.

        Registration in:
        http://digital.cic.gba.gob.ar/handle/11746/5992
        Recurso Completo
        http://repositorioslatinoamericanos.uchile.cl/handle/2250/2858918
        Share
        Author
        Deschamps, Cecilia Marcela
        Vucetich, María Guiomar
        Verzi, Diego H.
        Olivares, A. Itatí
        Institutions
        • Comisión de Investigaciones Científicas (Argentina)
        Abstract
        The Monte Hermoso Formation (Farola Monte Hermoso, Buenos Aires Province, early Pliocene) is very important because it is the type locality of biostratigraphic units of the South American mammal bearing Pliocene. These deposits were the base for the recognition of the Montehermosan and Lower Chapadmalalan stages/ages. The correlation of this unit, especially with the Chapadmalal Formation has been debated. Over the last twenty years, major improvements have been made in the knowledge of caviomorph rodents collected in the Monte Hermoso Formation. The results include information about systematics and morphological change within lineages of the families <em>Echimyidae (incl. Myocastoridae)</em>, <em>Ctenomyidae</em>, <em>Octodontidae</em>, and <em>Hydrochoeridae</em>. This information allows refinement of biostratigraphic correlation with other localities of south-eastern Buenos Aires Province. First and last records, as well as evolutionary patterns of some lineages, suggest an important change between the faunas from the Monte Hermoso Formation (including Lithostratigraphic Units I and II) and the Chapadmalal Formation, rejecting the previously suggested similarity of the upper levels of the Monte Hermoso Formation (Unit II, Lower Chapadmalalan) with those of the Chapadmalal Formation (Upper Chapadmalalan). Studies of more lineages including new revisions are necessary to test this proposal.
        Subjects
        Geología
        Zoología, Ornitología, Entomología, Etología

        Show full item record


        Red de Repositorios Latinoamericanos
        + of 2.515.000
        Available publications
        163 Participating institutions
        Dirección de Servicios de Información y Bibliotecas (SISIB)
        Universidad de Chile
        Membership Login
        Featured collections
        • Latin American Theses
        • Argentinean Theses
        • Chilean Theses
        • Peruvian Theses
        Latest collections added
        • Argentina
        • Brazil
        • Colombia
        • México
        Dirección de Servicios de Información y Bibliotecas (SISIB)
        Universidad de Chile
        Red de Repositorios Latinoamericanos | 2006-2018
         

        EXPLORE BY

        Institutions
        Date2011 - 20202001 - 20101951 - 20001901 - 19501800 - 1900

        Browse in Repository Network

        Countries >
        Document type >
        Publication date >
        Institutions >

        Red de Repositorios Latinoamericanos
        + of 2.515.000
        Available publications
        163 Participating institutions
        Dirección de Servicios de Información y Bibliotecas (SISIB)
        Universidad de Chile
        Membership Login
        Featured collections
        • Latin American Theses
        • Argentinean Theses
        • Chilean Theses
        • Peruvian Theses
        Latest collections added
        • Argentina
        • Brazil
        • Colombia
        • México
        Dirección de Servicios de Información y Bibliotecas (SISIB)
        Universidad de Chile
        Red de Repositorios Latinoamericanos | 2006-2018